[Skin endometriosis in abdominal scar after cesarean section. Case report and review of the literature]. / Endometriosis cutánea en cicatriz abdominal, posterior a operación cesárea. Informe de un caso y revisión de la literatura.

Scan endometriosis is a rare entity, commonly related after operation on the uterus or uterine tubes or a laparotomy procedure or other no pelvic surgical procedure, when transplantations of endometrial fragments were shed into the peritoneal cavity. We present a case of a 31 year woman, who had the clinical and histopathological diagnosis of scar endometriosis following cesarean section, treated with local surgical excision of the abnormal tissue, with a satisfactory response. And a review of world literature, was done.

Diagnostic reproducibility of Pap testing in two regions of Mexico: the need for quality control mechanisms.

To assess the reproducibility of diagnostic results obtained by examining Pap smears for cervical neoplasia, a study was conducted using a single group of 20 Pap smears, 3 negative and 17 from patients with varying degrees of neoplasia. These smears were examined by 14 volunteer readers (13 cytotechnologists and 1 cytopathologist) from the Mexican states of Oaxaca and Veracruz, and also by a highly experienced cytopathologist certified by the Mexican Board of Pathological Anatomy whose work provided a reference standard. Individual variability, as assessed by the Kappa coefficient of concordance, showed considerable difference in the diagnostic results obtained by different readers-the degree of agreement depending on the type of cervical lesion involved and the number of specimens from patients with that type of lesion. There was little diagnostic agreement when the specimens were assessed for particular classes of cervical neoplasia-mild, moderate, or severe neoplasia, carcinoma in situ, or invasive cervical cancer. (The greatest concordance was found in diagnosing specimens from subjects with invasive cervical cancer.) However, when the diagnosis was assessed continuously, using Kappa weighted in accordance with the five possible diagnoses of cervical neoplasia, the apparent reproducibility of the diagnoses improved greatly, Kappa coefficients for the 14 readers ranging from 0.31 to 0.72. In general, these data support the view that there is a need in Mexico and other parts of the Americas to establish quality control mechanisms monitoring cytologic diagnosis of cervical neoplasia, to standardize diagnostic nomenclature using a system such as the Bethesda System, to institute periodic certification, and to provide continuing training. As this suggests, it is necessary not only to evaluate but also to bring about organizational changes in order to expeditiously prevent or correct the problems that currently constrain achievement of efficient and effective cytologic diagnosis.

Control de calidad interno en citología cérvico-vaginal mediante revisión rápida: evaluación de la capacidad del personal del laboratorio para utilizar el procedimiento / Rapid rescreening as internal quality control in cervical citology. Personal proficiency testing of the laboratory personnel

Entre los procedimientos de control interno de calidad para evitar falsos negativos en citología ginecológica, la segunda revisión rápida de todos los casos negativos ha demostrado su eficacia. Para poner en práctica el procedimiento, antes de utilizarlo evaluamos la capacidad del personal del laboratorio. Se estudiaron 66 casos escogidos aleatoriamente revisándose cada laminilla en un tiempo de 30, 50 segundos, utilizando el objetivo 10x; las laminillas anormales, se separaron para ser evaluadas posteriormente. Hubo tres casos anormales que correspondieron, por diagnóstico de consenso, a cambios atípicos de etiología incierta, favoreciendo una lesión escamosa intraepitelial de bajo grado. Un observador, discrepó de los resultados obtenidos por el resto del grupo, ya que sólo identificó uno de los tres caso anormales; por esta razón, nuestros valores globales promedio disminuyeron: la sensibilidad fue de 91.6 por ciento, la especificidad de 100 por ciento, el valor predictivo positivo fue de 100 por ciento y el negativo de 99.6 por ciento, la tasa global de falsos negativos subió a 8.3 por ciento. Este estudio identifica al personal del laboratorio que está capacitado para poner en práctica el procedimiento, por lo que el observador que falló en sus apreciaciones deberá tener un adiestramiento ulterior.